You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.248,
What probably matters to youSection of the release
What
The MCP context and token breakdown now compares the full tool list against the set actually sent to the model. Tools that are held back report zero tokens and show as not loaded, and their tokens are removed from the total. If every MCP tool is held back, the total is 0.
Evidence
mcpToolTokens
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
